<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>子元素属性(me)</title>
    <style>
        .fu{
            width: 1200px;
            height: 600px;
            background-color: pink;
            display: flex;
        }
        .one,.two,.three{
            width: 300px;
            height: 200px;
            background-color: skyblue;
            color: white;
            line-height: 200px;
            text-align: center;
            margin: 0 10px;
            font-size: 40px;
        }
        .two{
            order: -2;
        }
        .one{
            align-self: flex-end;
        }
    </style>
</head>
<body>
    <div class="fu">
        <div class="one">1</div>
        <div class="two">2</div>
        <div class="three">3</div>
    </div>
</body>
</html>